Missing Features

Features not yet implemented in the Zig version:

1. Prometheus Metrics Format (format=p1)

Export weather data in Prometheus metrics format
See API_ENDPOINTS.md for format specification

2. PNG Generation

Render weather reports as PNG images
Support transparency and custom styling
Requires image rendering library integration

3. Language/Localization

Accept-Language header parsing
lang query parameter support
Translation of weather conditions and text (54 languages)

4. Json output

Does not match wttr.in format

5. Moon endpoint

/Moon and /Moon@YYYY-MM-DD endpoints not yet implemented
Moon phase calculation is implemented and available in custom format (%m, %M)

Multiple Locations Support

Handle colon-separated locations (e.g., London:Paris:Berlin)
Process and display weather for multiple cities in one request

This is advertised as a feature in wttr.in, but it does not work on the live site. Given that this would be an unbounded computational risk and a DOS vector, this is not going to be implemented. That can be done easily through a script, and it will allow the rate limiting to work better that way

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